4
European Statistical System (ESS) the Statistical Programme Committee (SPC) the Committee on Monetary, Finance and Balance of payments Statistics (CMFB) the European Committee on Economic and Social Information (CEIES)

5
Less formal cooperation structures Partnership group of chief statisticians Joint training centre (TES) Leadership group (LEGS) Detachment of staff from National Institutes

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Lessons learned The Positive Side The geographic area of application is growing far beyond the borders of EU The advantages of a harmonized system are acknowledged by all The detail of NACE Rev.1 is close to the optimal level National transformation of NACE Rev.1/CPA have caused no major problems

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And the bad….. Lack of solid methodological base Good tools are a prerequisite for a successful implementation CPA of limited use in transportable goods. Aggregates used for publication are not compatible

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…more bad news The aggregates of NACE Rev.1/CPA are not optimal –Lack of aggregates which existed in the old classifications. –The levels with 2-digit and 2-letter cannot serve all purposes –Data at the 3-digit level is not always available –An intermediate level of around 100-120 positions is missing.